1、GMAT两道数学题

Q1:

What is the probability that event E or event F or both will occur?

(1) The probability that event E will occur is 0.6.

(2) The probability that event F will occur is 0.4.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient

Q2:

Last year in a group of 30 businesses, 21 reported a net profit and 15 had investments in foreign markets. How many of the businesses did not report a net profit nor invest in foreign markets last year?

(1) Last year 12 of the 30 businesses reported a net profit and had investments in foreign markets.

(2) Last year 24 of the 30 businesses reported a net profit or invested in foreign markets, or both.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

第一题答案为E，第二题答案为D。

第一题为什么不选C 呢？我觉得应该是0.4+0.6+0.4*0.6

希望能给出详细解答，十分感谢了！！！

不会解答的请勿回复！

2、gmat逻辑题题型有哪些

gmat考试总分800，由四部分组成：分析性写作;综合推理;定量推理和逻辑。那么下面和来看看这篇gmat逻辑题题型有哪些的文章，相信一定会有收获的。

一、归纳， conclusion题型

1.题中有两个或更多的 evidence，没有 conclusion，但是有推理关系，那么答案是 conclusion。

2.题中有两个或更多的 evidence，并且 evidence是有数字的，答案就是需要计算元素与数字之间的关系。

3.题中有 evidence和 conclusion，但是 evidence会影响 conclusion的准确性，那么答案就是 conlusion为不正确的。

4.题中有 evidence和 conclusion，但彼此之间没有联系，那么答案就是evidence和conclusion没有任何关系。

5.题中有evidence和conclusion，但是相互矛盾，那么答案就是conclusion不存在。

6.题中有 evidence和 conclusion，而且结构比较完整，没有遗漏，那么答案就是 evidence的复述。

7.题中有 evidence和 conclusion，而且conclusion是用于比较两个元素的结构，那么答案就是 conclusion用于比较的另一个写法。

二、演绎题

1.假设题

(1)题中有 evidence和 conclusion，而且推理过程完整，那么答案就是将 conclusion和 evidence的元素的结合。

(2)题中有 evidence和 conclusion，但推理过程不完整，缺少应该出现的某个 evidence，那么答案就是这个 evidence。

2.加强题

(1)题中有 evidence和 conclusion，且推理过程完整，那么答案就是将 conclusion中的元素与 evidence中的元素的结合。

(2)题中有 evidence和 conclusion，且推理过程完整，那么答案就是说明 conclusion是有效的。

(3)题中有 evidence和 conclusion，推理过程为 conclusion解释 evidence，其本身已构成了一个充要条件，那么答案为 evidence的反命题

3.weaken题

(1)题中有 evidence和 conclusion，但 evidence不完整或不正确，那么答案就是为什么 evidence是不完整或不正确的。

(2)题中有 evidence和 conclusion，且推理逻辑正确，答案就是可以使用其他 evdence。

(3)题中有 evidence和 conclusion，但推理错误，那么答案就是唯一的 conclusion元素与唯一的 evidence元素是没有关系的

(4)题中有 evidence和 conclusion，推理过程为 conclusion解释 evidence，答案就是其他 evdence在起作用。

4.评价题

题中有 evidence和 conclusion，答案就是evidence的扩展或缩小。

5.填空题

题中有 evidence和 conclusion，那么答案就是将 conclusion与 evidence连接起来的元素。

上述就是关于gmat逻辑题题型有哪些的内容，希望对大家有所帮助，祝愿大家都能取得优异的成绩。

3、2道GMAT数学题

1，After driving to a riverfot parking lot, Bob plans to run south along the river, turn around, and return to the parking lot, running north along the some path. After running 3.25 miles south, he decides to run for only 50 minutes more. If Bob runs at a constant rate of 8 minutes per mile, how many miles farther southcan he run and till be able to return to the parking lot in 50 minutes.(这道题的题意完全不理解，)

A1.5 B 2.25 C3.0 D 3.25 E .75

2，If Q is an odd number and the median of Q consecutive integers is 120, what is the largest of these integers.?题意不清

A (Q-1)/2+120 B Q/2+119 C Q/2+120 D (Q+119)/2 E (Q+120)/2

4、一道GMAT题目

at a dinner party, 5 people are to be seated around a circular table. Two seating arrangements are considered different only when the positions of the people are different relative to each other. What is the total number of different possible seating arrangements for the group?

告诉我为什么和答案哦 谢谢

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